-Added supporting library for setting of ARIA roles/states (it is currently just a wrapper around DOM.set/get/removeElementAttribute calls)
-Added ARIA roles/states for CustomButton, Tree, TreeItem, MenuBar, MenuItem, TabBar, TabPanel
-Added keyboard navigation support to TabBar and MenuBar
-Enured that tabindexes are properly set for all widgets that derive from FocusWidget
-Set a tabindex of -1 on GWT History and Script IFRAMES so that they are not part of the tab cycle
 
Patch by: rshearer, rdayal, clchen, jgw, raman

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@1977 8db76d5a-ed1c-0410-87a9-c151d255dfc7
23 files changed